Carbon fibres type HT
are carbon fibres
with values of Young's modulus
The term HT
, referring to high tensile strength, was early applied because fibres of this type
display the highest tensile strengths.
The disposition of boundaries between the fibre types is somewhat arbitrary. For carbon
fibres type HT
, the values of the strength-to-stiffness ratio are typically larger than
. The tensile strength of carbon fibres is flaw-controlled, however, and therefore
the measured values increase strongly as the diameter of the filaments is decreased.
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations
on page 481
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook